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Chromatogram

Description

2-Naphthoxyacetic acid was included in a EURL (European Union Reference Laboratory) report for using QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) single residue methods. Primesep 100 & Obelisc R were used to separate 2-Naphthoxyacetic acid. Primesep 100 is a mixed-mode column which uses embedded ion-pairing groups and Obelisc can fine tune separations using both a long hydrophobic chain and ionic groups. Method is LC/MS compatible and can be used for many pesticides.

Method Parameters

Mobile PhaseGradient MeCN – 10-70%, 15 min, 7 min hold
BufferGradient AmAc pH 3.0- 20-60 mM, 15 min, 7 min hold
Flow Rate0.4 ml/min
DetectionUV, 270 nm
Class of CompoundsSynthetic plant hormone, Acid,   Hydrophobic, Ionizable
Analyzing Compounds2-Naphthoxyacetic acid

HPLC Column Used

Primesep 100, 2.1×150 mm, 3 µm, 100A